Arsenal had a training session at Mestalla (PHOTO)

Arsenal are preparing for the second leg of the Europa League semi-final with Valencia. Unay Emery's team has already arrived in Spain and held a training session at the Mestalla. The first leg took place at Emirates and ended with a confident victory of the Gunners with a score of 3-1. Valencia host Arsenal at Mestalla on Thursday, May 9th. [gallery ids="300582,300579,300576,300570,300573,300543,300540,300567,300564,300561,300558,300537,300549,300546,300555,300552,300534"]

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